I started off as a MoYu fan boy when I first started cubing because of the hype that was around the WeiLong GTS2M, but after buying the entire GTSM/GTS2M line up I saw QiYi. I believe I made the right choice with MoYu for 3x3, but at the time 4x4 was pretty close with the AoSuGTS2M and the WuQue. The 5x5 though... it was the AoChuang GTSM was hands down the better choice. Once you got to the 6x6 and 7x7 the Shadow M and Spark M just spanked the AoShi and AoFu. Then the Valk 4 and Valk 5 came out... and the Valk 4 was a bit of a flop whereas the AoSu WR M was amazing; but the Valk 5 was simply amazing. I really wanted to wait to buy the AoChuang WRM but they just took too long and the bought the Valk 5... I was not disappointed... So when I went to buy some extra cubes for my classroom I did purchase both budget 3x3, Meilong 3x3 M and QiYi MS 3x3. For the 4x4 I went with the Meilong M 4, since I really like the AoSu WR M... and surprising it is still a 59mm 4x4. For 5x5 I went with the QiYi MS 5x5, I am hoping it has that crunchy QiYi big puzzle feel like the Valk 5, Shadow M, and Spark M. I am going to say I probably have the nicest classroom set of cubes and puzzles for my students.
3x3: YJ YuLong V2 M, MoYu MeiLong 3x3 M, QiYi MS 3 4x4: YJ YuSu V2 M, MoYu Meilong 4x4 M 5x5: YJ YuChuang V2 M, QiYi MS 5 6x6: YJ YuShi V2 M 7x7: YJ YuFu V2 M I also have other puzzles, but I only wanted to mention the 3x3 through 7x7.
